[Age and variability in the blood vessels of the walls of the human iliac veins].

The investigation of the vascular bed in walls of the human iliac veins has been performed in 92 preparations obtained from embryos, children and mature persons of both sex by means of injection and non-injection methods. It has been stated that vascular bed in walls of the human iliac veins includes the intramural vessels both delivering and evacuating blood. Structural changes of the intramural bed in ontogenesis can be followed during three stages (development and differentiation, stabilization, involution).